Thread: tranny shifting hard. code po730 came up

Results 1 to 2 of 2
  1. #1 tranny shifting hard. code po730 came up 
    SE Level Member tazgtp's Avatar
    Join Date
    Feb 2010
    Location
    California
    Posts
    9
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Well I got my tranny replace not rebuild like I wanted. The mechanic said that he replace it with the same year and make. I towed it home and decided to drive it later that day. It shifts so hard that it causes the cd player to skip. And it shifts hard in every gear. The torque converter doesn't lock up. WOT it shifts very smoothly and downshift are smooth also. I hook up my scanner and po730 came up. By the way I have a 01 GTP with 175K miles. Where is the part number on the transmission so I can look it up the see what tranny it is? And if it is the right tranny what can I do to get rid of this code? The scanner I have is a Snap-On Solus Pro. It can do alot of stuff. I'm taking it back on Monday and telling them to fix it. But if I can fix it, it would be great. Any suggestions would be greatly appreciate.

    Thank you

    Rent
    Reply With Quote  
     

  2. #2 Re: tranny shifting hard. code po730 came up 
    Transmission Expert Trannyman95's Avatar
    Join Date
    Dec 2007
    Location
    Fort Wayne, IN
    Posts
    1,858
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Code P0730 is Incorrect Gear Ratio and this will set if a transmission with a different gear ratio is installed. The only way around this is to reprogram the pcm or have the correct transmission installed with the right gear ratio for your application. Only the supercharged cars came with an overdriven chain drive and driven sprocket combination. A lot of shops think you just swap the HD diff over to another trans and it will work ok but that is not true- unless you have your pcm reprogrammed.
    Reply With Quote  
     

Similar Threads

  1. shifting hard
    By jaredbos 1 in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 9
    Last Post: 01-16-2011, 12:25 AM
  2. 2 to 3 tranny shifting & WOT shifting problems
    By josh in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 0
    Last Post: 07-21-2010, 08:52 PM
  3. Maybe shifting too hard?
    By Claude in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 2
    Last Post: 05-27-2010, 08:31 PM
  4. Hard shifting and slipping?
    By Lonestargp in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 2
    Last Post: 11-15-2009, 11:56 PM
  5. Hard shifting
    By Seagya in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 27
    Last Post: 11-12-2009, 09:50 AM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •